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WellCensus

Oil & gas wells in Madera County, CA

298 catalogued wells in Madera County, California, from the state regulator registry and the federal orphaned-well inventory.

Dataset updated . Derived from public data sources.

At a glance

Madera County, California has 298 catalogued oil & gas wells: 17 active (6%), 260 plugged & abandoned (87%) and 9 documented orphans. It ranks 23rd of the 39 California counties WellCensus profiles by well count and holds 0.1% of the state's 242,471 catalogued wells.

Catalogued wells

298

Active

17

Plugged

260

Documented orphans

9

What is the status of oil and gas wells in Madera County?

6% of Madera County's wells are active, 17 percentage points below the California share of 22%. 87% are plugged & abandoned, against 60% statewide and 47% nationally. 5 wells (2%) are shut-in — unplugged but idle. 9 wells (3%) are documented orphans with no operator able to plug them, compared with 1% across California and 4% nationally. The remaining 7 carry status codes outside those classes, such as permitted or cancelled locations.

What kinds of wells are in Madera County?

By product class, 11 of the county's wells (4%) are oil wells, 102 (34%) gas wells and 2 (0.7%) injection wells. Statewide the oil share is 68% and the gas share 3%. 100% of the county's wells carry coordinates and appear on the map.

How does Madera County compare with other California counties?

Madera County has the 23rd-most catalogued wells of the 39 California counties with at least 25. The median California county on WellCensus has 675 wells. The largest, Kern County, has 156,849. By documented orphans it ranks 18th in California.

Who operates wells in Madera County?

86 distinct operators of record are linked to wells in Madera County. 100% of the county's wells carry a link to a canonical operator profile; the rest list no operator or a name not yet resolved. Each well's page names its operator where the state publishes one.

Oil & gas wells in Madera County, CA
WellAPI # / state IDStatusTypeOperator
Chowchilla-Bender-Bragg 104-039-00001Plugged & abandonedOilE. A. Bender
Chowchilla-Bender-Bragg 204-039-00002Plugged & abandonedOther typeE. A. Bender
Chowchilla 304-039-00003Plugged & abandonedOilE. A. Bender
Southern Realty 2-604-039-00004Plugged & abandonedGasChowchilla Gas Company
Southern Realty 3-604-039-00005Plugged & abandonedOther typeChowchilla Gas Company
Pure Oil 104-039-00006Plugged & abandonedGasAllied Energy Corp.
Redman-Stone 1-704-039-00007Plugged & abandonedGasChowchilla Gas Company
R-S 3-704-039-00008Plugged & abandonedOther typeChowchilla Gas Company
Chowchilla 204-039-00009Plugged & abandonedGasChowchilla Gas Company
Chowchilla-Bender 104-039-00010OrphanedGasAllied Energy Corp.
Chowchilla-Calitex 2-1704-039-00011Plugged & abandonedGasChowchilla Gas Company
Redman-Stone 3-1704-039-00012Plugged & abandonedOther typeChowchilla Gas Company
Chowchilla-Calitex 1-1804-039-00013Plugged & abandonedOilChowchilla Gas Company
R-S Thomson 3-1804-039-00014Plugged & abandonedOther typeChowchilla Gas Company
C-B 1-1904-039-00015Plugged & abandonedGasAllied Energy Corp.
Redman-Stone 1-2004-039-00016Plugged & abandonedOilChowchilla Gas Company
Redman-Stone 2-2004-039-00017Plugged & abandonedOilChowchilla Gas Company
Redman-Stone 3-2004-039-00018Plugged & abandonedOilChowchilla Gas Company
Redman-Roduner 104-039-00019Plugged & abandonedOther typeChowchilla Gas Company
Clayton 104-039-00020Plugged & abandonedOther typeClaud Clayton
Chowchilla 104-039-00021Plugged & abandonedOther typeHarcor Energy Inc.
Chowchilla 204-039-00022Plugged & abandonedGasHarcor Energy Inc.
Chowchilla 104-039-00023Plugged & abandonedOther typeGeorge F. Getty, Inc.
Chowchilla Farms, Inc. 6-1804-039-00024Plugged & abandonedOther typeShell Western E&P Inc.
Southern Realty 1-604-039-00025Plugged & abandonedOther typeChevron U.S.A. Inc.

A sample of the county’s wells — every catalogued well has its own page. Browse all 298 in search → (filter by operator, status and type, then export), or find a specific well on the live map.

Frequently asked questions

How many oil and gas wells are in Madera County, CA?

Madera County, California has 298 catalogued oil & gas wells: 17 active, 260 plugged and 9 documented orphans.

How many orphaned wells are in Madera County?

9 wells in Madera County, California are documented orphans — unplugged with no solvent operator of record, the 18th-highest count among California counties.

What share of wells in Madera County are plugged?

260 of Madera County's 298 catalogued wells (87%) are plugged & abandoned, compared with 60% across California.

Which California county has the most oil and gas wells?

Kern County has the most catalogued wells of any California county on WellCensus (156,849); Madera County ranks 23rd with 298.

How many companies operate wells in Madera County?

86 distinct operators of record are linked to catalogued wells in Madera County, California.

Nearby in the California rankings

About this data

Source: CalGEM WellSTAR well registry, plus the USGS United States Documented Orphaned Well Database (2026, doi 10.5066/P13FHBYG), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: WellCensus, “Oil & gas wells in Madera County, California”, https://wellcensus.com/wells/california/madera (data as of October 10, 2026).